{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:47.511847", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2017-Aug-21_to_2017-Aug-31_60.5_19.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2017080002524}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "August 21 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 31 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 11}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 95941.52723514634}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Oman"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "Arabian-Sea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Arabian Sea"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 19.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 60.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "60.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 61.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.5, 19.75], [58.03, 19.53], [58.25, 19.0], [58.03, 18.47], [57.5, 18.25], [56.97, 18.47], [56.75, 19.0], [56.97, 19.53], [57.5, 19.75]]]]}, "2017-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.5, 19.75], [58.03, 19.53], [58.25, 19.0], [58.03, 18.47], [57.5, 18.25], [56.97, 18.47], [56.75, 19.0], [56.97, 19.53], [57.5, 19.75]]]]}, "2017-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.75, 20.5], [57.97, 21.03], [58.32, 21.18], [58.47, 21.53], [58.82, 21.68], [58.97, 22.03], [59.5, 22.25], [59.75, 22.15], [60.0, 22.25], [60.53, 22.03], [60.68, 21.68], [60.75, 21.65], [61.0, 21.75], [61.53, 21.53], [61.75, 21.0], [61.65, 20.75], [61.75, 20.5], [61.65, 20.25], [61.75, 20.0], [61.65, 19.75], [61.75, 19.5], [61.53, 18.97], [61.18, 18.82], [61.03, 18.47], [60.5, 18.25], [59.97, 18.47], [59.75, 19.0], [59.85, 19.25], [59.82, 19.32], [59.47, 19.47], [59.32, 19.82], [59.25, 19.85], [59.13, 19.8], [59.25, 19.5], [59.03, 18.97], [58.5, 18.75], [58.2, 18.88], [58.03, 18.47], [57.5, 18.25], [56.97, 18.47], [56.75, 19.0], [56.97, 19.53], [57.5, 19.75], [57.8, 19.63], [57.96, 20.0], [57.75, 20.5]]]]}, "2017-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.75, 20.0], [57.85, 20.25], [57.75, 20.5], [57.97, 21.03], [58.32, 21.18], [58.47, 21.53], [58.82, 21.68], [58.97, 22.03], [59.5, 22.25], [59.75, 22.15], [60.0, 22.25], [60.53, 22.03], [60.68, 21.68], [60.75, 21.65], [61.0, 21.75], [61.53, 21.53], [61.75, 21.0], [61.65, 20.75], [61.75, 20.5], [61.65, 20.25], [61.75, 20.0], [61.65, 19.75], [61.75, 19.5], [61.53, 18.97], [61.18, 18.82], [61.03, 18.47], [60.5, 18.25], [59.97, 18.47], [59.75, 19.0], [59.85, 19.25], [59.82, 19.32], [59.47, 19.47], [59.32, 19.82], [59.25, 19.85], [59.18, 19.82], [59.15, 19.75], [59.25, 19.5], [59.03, 18.97], [58.5, 18.75], [58.2, 18.88], [58.03, 18.47], [57.5, 18.25], [56.97, 18.47], [56.75, 19.0], [56.97, 19.53], [57.5, 19.75], [57.8, 19.63], [57.85, 19.75], [57.75, 20.0]]]]}, "2017-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.25, 18.5], [56.47, 19.03], [56.82, 19.18], [56.97, 19.53], [57.32, 19.68], [57.47, 20.03], [57.82, 20.18], [57.85, 20.25], [57.75, 20.5], [57.97, 21.03], [58.32, 21.18], [58.47, 21.53], [58.82, 21.68], [58.97, 22.03], [59.5, 22.25], [59.75, 22.15], [60.0, 22.25], [60.53, 22.03], [60.68, 21.68], [60.75, 21.65], [61.0, 21.75], [61.53, 21.53], [61.75, 21.0], [61.65, 20.75], [61.75, 20.5], [61.65, 20.25], [61.75, 20.0], [61.65, 19.75], [61.75, 19.5], [61.53, 18.97], [61.18, 18.82], [61.03, 18.47], [60.5, 18.25], [59.97, 18.47], [59.75, 19.0], [59.85, 19.25], [59.82, 19.32], [59.47, 19.47], [59.32, 19.82], [59.25, 19.85], [59.18, 19.82], [59.15, 19.75], [59.25, 19.5], [59.03, 18.97], [58.68, 18.82], [58.53, 18.47], [58.18, 18.32], [58.15, 18.25], [58.25, 18.0], [58.03, 17.47], [57.5, 17.25], [56.97, 17.47], [56.82, 17.82], [56.47, 17.97], [56.25, 18.5]]]]}, "2017-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.25, 18.5], [56.47, 19.03], [56.82, 19.18], [56.97, 19.53], [57.32, 19.68], [57.47, 20.03], [57.82, 20.18], [57.85, 20.25], [57.75, 20.5], [57.97, 21.03], [58.32, 21.18], [58.47, 21.53], [58.82, 21.68], [58.97, 22.03], [59.5, 22.25], [60.03, 22.03], [60.25, 21.5], [60.15, 21.25], [60.25, 21.0], [60.15, 20.75], [60.25, 20.5], [60.07, 20.07], [60.5, 20.25], [61.03, 20.03], [61.25, 19.5], [61.15, 19.25], [61.25, 19.0], [61.03, 18.47], [60.5, 18.25], [59.97, 18.47], [59.75, 19.0], [59.85, 19.25], [59.75, 19.5], [59.93, 19.93], [59.5, 19.75], [59.25, 19.85], [59.18, 19.82], [59.15, 19.75], [59.25, 19.5], [59.03, 18.97], [58.68, 18.82], [58.53, 18.47], [58.18, 18.32], [58.15, 18.25], [58.25, 18.0], [58.03, 17.47], [57.5, 17.25], [56.97, 17.47], [56.82, 17.82], [56.47, 17.97], [56.25, 18.5]]]]}, "2017-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.97, 19.53], [60.5, 19.75], [60.75, 19.65], [61.0, 19.75], [61.53, 19.53], [61.75, 19.0], [61.65, 18.75], [61.75, 18.5], [61.53, 17.97], [61.0, 17.75], [60.47, 17.97], [60.32, 18.32], [59.97, 18.47], [59.75, 19.0], [59.97, 19.53]]], [[[56.47, 19.03], [57.0, 19.25], [57.25, 19.15], [57.32, 19.18], [57.35, 19.25], [57.25, 19.5], [57.47, 20.03], [57.82, 20.18], [57.85, 20.25], [57.75, 20.5], [57.97, 21.03], [58.32, 21.18], [58.47, 21.53], [58.82, 21.68], [58.97, 22.03], [59.5, 22.25], [60.03, 22.03], [60.25, 21.5], [60.03, 20.97], [59.68, 20.82], [59.65, 20.75], [59.75, 20.5], [59.53, 19.97], [59.18, 19.82], [59.15, 19.75], [59.25, 19.5], [59.03, 18.97], [58.68, 18.82], [58.53, 18.47], [58.18, 18.32], [58.15, 18.25], [58.25, 18.0], [58.03, 17.47], [57.5, 17.25], [56.97, 17.47], [56.82, 17.82], [56.47, 17.97], [56.25, 18.5], [56.47, 19.03]]]]}, "2017-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.25, 19.0], [59.47, 19.53], [60.0, 19.75], [60.25, 19.65], [60.32, 19.68], [60.47, 20.03], [61.0, 20.25], [61.53, 20.03], [61.75, 19.5], [61.65, 19.25], [61.75, 19.0], [61.65, 18.75], [61.75, 18.5], [61.53, 17.97], [61.0, 17.75], [60.75, 17.85], [60.5, 17.75], [59.97, 17.97], [59.82, 18.32], [59.47, 18.47], [59.25, 19.0]]]]}, "2017-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.25, 19.0], [59.47, 19.53], [59.82, 19.68], [59.97, 20.03], [60.5, 20.25], [60.75, 20.15], [61.0, 20.25], [61.25, 20.15], [61.5, 20.25], [62.03, 20.03], [62.25, 19.5], [62.15, 19.25], [62.25, 19.0], [62.03, 18.47], [61.68, 18.32], [61.53, 17.97], [61.0, 17.75], [60.75, 17.85], [60.5, 17.75], [59.97, 17.97], [59.82, 18.32], [59.47, 18.47], [59.25, 19.0]]]]}, "2017-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.25, 19.0], [59.47, 19.53], [59.82, 19.68], [59.97, 20.03], [60.5, 20.25], [60.75, 20.15], [61.0, 20.25], [61.25, 20.15], [61.5, 20.25], [62.03, 20.03], [62.25, 19.5], [62.15, 19.25], [62.25, 19.0], [62.03, 18.47], [61.68, 18.32], [61.53, 17.97], [61.0, 17.75], [60.75, 17.85], [60.5, 17.75], [59.97, 17.97], [59.82, 18.32], [59.47, 18.47], [59.25, 19.0]]]]}, "2017-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.25, 19.0], [59.47, 19.53], [59.82, 19.68], [59.97, 20.03], [60.5, 20.25], [60.75, 20.15], [61.0, 20.25], [61.25, 20.15], [61.5, 20.25], [62.03, 20.03], [62.25, 19.5], [62.15, 19.25], [62.25, 19.0], [62.03, 18.47], [61.68, 18.32], [61.53, 17.97], [61.0, 17.75], [60.75, 17.85], [60.5, 17.75], [59.97, 17.97], [59.82, 18.32], [59.47, 18.47], [59.25, 19.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1763283981732684}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1453747043254927}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.219951642572994, 27.67559047736978, 26.482679513954224, 26.50264279415427, 26.098385135947865, 25.84109855278905, 25.803613994725595, 26.441041273365897, 26.504148658277984, 26.599046371436884, 26.593132730339562]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.219951642572994, 27.67559047736978, 28.72341375931461, 27.390735073350754, 26.911486747648212, 26.89169047348679, 26.604157704519594, 26.497225371139507, 26.569270827923674, 26.68829186970555, 26.68017864259025]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.646553275466772, 2.1160254367043763, 1.2742032664286556, 1.32969894029544, 1.1481132073148186, 1.2113562063189605, 1.1518528702888287, 0.8080393597088668, 0.8248773548923825, 0.9049516456262268, 0.8808853160779095]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.646553275466772, 2.1160254367043763, 3.1763283981732684, 1.8301409418938874, 1.6817559510497517, 1.4953339350980173, 1.3941398898955413, 0.8665014844093548, 0.9236802582802284, 1.002806005405887, 0.9759383622835003]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8148032705215709, 2.3278872854722263, 1.6573296004597498, 1.786290446158568, 1.5302773073421574, 1.5225269797322172, 1.513515371063885, 1.4111201683628387, 1.4512234258411112, 1.5464949341972436, 1.4652035783300452]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8148032705215709, 2.3278872854722263, 3.4815153655249325, 2.0344653000350896, 1.8612956974330417, 1.769295415598993, 1.6615104133586245, 1.4834104194886977, 1.598113791478394, 1.6652952896632829, 1.5807973496035677]}}